Machine for separating gold, silver, and the like from sands.



D. DIVER.

OLD, SEWER, AND THE LIKE FROM SANDS; APPUCATION FILED APR. I4. 1917- MACHINE FOR SEPARAUNG G LQM QQQ Patented Jan. 22, 1918.

ESE/LIE I ll'l lliTED %TATTE% Pi ldiiilhlil.

DANIEL DIVER, OF CALGARY, ALBERTA, CANADA.

MACHINE FOR SEPARATING GOLD, SILVER, AND THE LIKE FROM SANDS.

Specification of Letters Patent.

7 I I Application filed April 14, 1917. Serial No. 162,211

To all whom it may concern.

lie it known that l. DANIEL DIVER, a subject of the King of Great llritain, and resident of the city of Calgary. in the Province (if-Alberta and the Dominion of Canada, have invented certain new and useful Iniprovclnents in Machines for Separating Gold, Silver, and the like from Sands, of which the following is a full description.

This, invention relates'to a machine for separating gold. silver. sands in which they are found, and the objccts of the invention are to increase the efiieiency of the machine. to render the several parts readily accessible for inspection during the process of separation, so that each step of the process may be. readily observed, to simplify the several parts of the machine and adapt the same to better perform the functions required of them.

With the above and other objects in view, the invention consists essentially of the improved construction particularly described and set forth in the following specification and accompanying drawings forming part of the same.

I In the drawings,

Figure 1 is a front elevation, partly sectional, of a machine embodying the present invention.

Fig. 2 is a side elevation of the same.

. Fig. 3 is an enlarged view of a detail.

Like characters of reference refer to like parts in the several figures.

Referring to the drawings. A represents a hopper or chamber having a serrated and angularly disposed bottom '10 and provided with a plurality of discharge conduits 11 at the .lower end thereof. through which the sands delivered to the said hopper are discharged.

These conduits are located abovcthe inverted conical tubular members 1 superimposed on the upper end of the pipes 153, which are provided with openings 14 in the walls thereof through which air or the like...

is. designed. to pass during the operation of the machine.

An injector nozzle 15 is inserted in each pipe 13, intermediate of the height thereof, the nozzle being downwardly disposed and bell shaped, and connected through the pipe 16 With a suitable container 17 containing fluids such as steam, air or water under pressure, the delivery of the fluids to the nozzles being controlled by the valve means 18.

and the like front The lower or discharge end of the pipes 13 are locatedabove cups 19 which are designed to contain mercury, the said cups and the lower end of the said pipes being housed in a suitable casing 20, the lower end of which is formed With inwardly tapering walls 21 terminating in a discharge conduit'22.

This discharge conduit 22 is located above a dished screen 23 which is operatively supported by the links 24: from the frame 25 surrounding the lower end of the casing 20, oscillating motion being applied to the screen'23 by a cam 26 which is operatively connected thereto through the rod 27.

During the oscillation of the screen 23, an upward motion takes place simultaneously with the lateral motions.

The screen 23 is located in a bath 28 op eratively supported from the frame 25 by the links 30 and is oscillated from the cam right angles to each other so that when the,

said cams are in operation, the screen and bath 28 respectively will be oscillated in different directions transversely to each;

Patented Jan. 22,

other, while at the same time they will also be actuated in a vertical direction. v The bottom of the chamber 28 is formed with a recess 33, adapted to hold or collect the mercury utilized in the amalgamation of -the gold and silver contained in the sand bein g treated.

When this machine is in use, the sands from the hopper A are delivered through the conduits 11 to the conical members 12 and pass through the plpes 13, under the action of gravity. During this operation there 1s an pass downward mgs 1.4:, and asthe sands L 13, water, steam, air orv en'training action on the atmos- PDBIIC air which passes 111 through the openoil the cup 19 and discharge through the conduit 22 into the screen 23.

This screen is during this operation subjected to an oscillating and vertical motion already described, which causes the sand in the screen to be moved in a direction trans versely across the surface of the mercury contained in the bath 28, which is actuated by a cam 31.

The mercury is thus separated from the sands which are then drawn oil", in any convenient manner, andthe mercury is subsequently removed and treated in the usual manner 4 to recover the metallic values therein.

As many changes could be made in the above description and many apparently Widely different embodiments of my invention Within the scope of the claims constructed \vithout departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limited sense.

What I claim as my invention is:

1. An apparatus for the purpose specified comprising a bath, a container therefor, a screen operatively mounted in the bath, means for oscillating the screen as a unit, and means for oscillating the bath and container in a direction transversely to the screen.

2. An apparatusof the class described comprising a bath, a container therefor, a screen located in the bath, means for osciL lating the screen as a unit and simultaneously actuating the same in a vertical direction, and means for oscillating the bath and container transversely to the screen simultaneously actuating the bath in a vertical direction.

An apparatus of the class described, comprising a bath, a container therefor, a screen having dish sides in the bath, cam means for oscillating the screen and eccentric means for oscillating the bath and container in a direction transversely to the screen.

4:. An apparatus of the class described, comprising a screen, links operatively sup porting the screen, a bath container, links operatively supporting the bath, said screen being submerged in the. bath container, cam means for oscillating the screen and eccentric means for oscillating the bath container at substantially right angles to the screen.

An apparatus of the class described, comprisin a bath container having a depression in the bottom thereof, a screen op erat-ively mounted in the bath, links pivotally supporting the screen, links pivotally su 'iporting the bath container, eccentric means for oscillating the screen and simultaneously elevating the same and eccentric means for oscillating the bath container transversely to the screenand simultane ously elevating the same.

In Witness whereof I have hereunto set my hand in the presence of two witnesses.'

"ANNIE M. LA Marcus,

MAY CALDWELL.

as a unit 

